Convert INSERT_SUBREG to COPY in TwoAddressInstructionPass.

INSERT_SUBREG will now only appear in SSA machine instructions.

Fix the handling of partial redefs in ProcessImplicitDefs. This is now relevant
since partial redef COPY instructions appear.

llvm-svn: 107726

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp b/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
index fc65f86e202..a626fc03937 100644
--- a/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -265,7 +265,7 @@ bool MultipleDefsBySameMI(const MachineInstr &MI, unsigned MOIdx) {
     if (MO.getReg() == Reg && MO.isDef()) {
       assert(MI.getOperand(MOIdx).getSubReg() != MO.getSubReg() &&
              MI.getOperand(MOIdx).getSubReg() &&
-             MO.getSubReg());
+             (MO.getSubReg() || MO.isImplicit()));
       return true;
     }
   }